Cable conveyer-hoist.



12.40. RIBLET. GABLE GONVEYEB. HOIST.

APPLICATION FILED NOV. 23, 1904.

Patented Feb. 23, 1909.

3 SHEETS-SHEET 1.

B. o. RIBLBT. OABLE UONVEYER HOIST.

APPLICATION FILED NOV. 23, 1904.

mE Noms PL lens co., wsucnw. n. c.

3 SHBETS-BHBET 3.

Patented Feb. 23, 1909.

B. 0. RIBLET." GABLBGONVBYER HQIST. APPLmATmN HLBD'Nov. 23, 1904. 913,564.

2 mm. S

NITE

FTCE.

BYRON O. RIBLET, OF SPOKANE, WASHINGTON, ASSIGNOR TO THE A. LESOHEN &SONS ROPE COMPANY, OF ST. LOUIS, MISS'OURI, A CORPORATION OF MISSOURI.

CABLE CONVEYER-HOIST.

Specification of Letters Patent.

Patented Feb. 23, 1909.

Application filed November 23, 1901. Serial No. 234,031.

To all whom it may concern:

Be it known that 1, Brnou C. RIBLET, citizen of the United States ofAmerica, residing at Spokane, in the county of Spokane and State ofvv'v'ashington, have invented certain new and useful Improvements inOable Conveyer-Hoists, and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

My invention relates to improvements in cable conveyer hoists and theobjects of my invention are: First, to provide a double drumdirect-operated cable hoist. Second, to provide a simple, durable andeasily m'anipulated cable conveyer hoist. I attain these objects by themechanism illustrated by the accompanying drawings, in which:

Figure 1, is a side elevation of a cable hoist embodying my inventionthe same being mounted upon a track rope. Fig. 2, is a verticalSectional view of the same, taken on the line 2-2 of Fig. 1 the drumsbeing in full lines. Fig. 3, is a sectional view through the improvedcable grip wheel. Fig. 4, is a plan W'ew of my improved rope guide whichinsures the even winding of the hoist rope upon the drums. Fig. 5, is amodification of the same, in Which one of the guide sheaves is providedwith flanges, which over-lap the flanges of the other guide sheave. Fig.0, illustrates still another modification of the rope guide in which asingle guide sheave is employed for each drum; and, Fig. 7, is a sideelevation, illustrating the manner of operating the improved cablehoist. Fig. 8 is a diagrammatic plan view of winding drums. Fig. 9 is adetail view, on a larger scale, of the reversely-tlireaded rod carryingthe sheaves 53, 54.

Similar characters of reference refer to similar parts throughout theseveral views.

Referring to the drawings: The numeral l, designates a Wire rope cablesheave grip wheel. This grip Wheel consists of the hub portion 2 and thesheet steel side flanges 3, which are secured to the hub portion 2 attheir central portion by bolts 11, which pass loosely through both sidesand bolt them together. The outer ends of the side flanges of the sheaveare introverted towards each other, and form a marginal flat rim 5, andto the inside of each flange at a short distance from the terminal band,right angled rings 0 are secured to each flange. These right angledrings are preferablyl made of sheet iron or steel and the limbs of bothrings are short, and one limb is placed against the side of the flangesand is riveted there by rivets 7. The other limb of these right anglerings forms an annular bearing surface immediately below the rim 5, andbetween these two rims or bearing surfaces I place the round heel end ofa commonly used form of cable rope grip jaws 8, the jaw end portions ofwhich are provided with lugs 9, which are pivoted together by a rivet10. Enough of these cable grips are placed in the recesses of theflanges of the sheave grip wheel, to stand close together around itsperiphery.

A loose ended ring shaped flat band steel spring 11, which is made withoutward eX- panding resilient pressure is placed under the center of thejaws of the grips and normally holds them open, while the pressure of acable under a strain causes the grips to move radially inwardly andagainst the ring spring and close their j aws against the cable therebygripping and holding fast to it. This grip sheave wheel is mounted onthe central portion of a shaft 12, which extends far enough beyond it oneach side to receive two cable winding drums 13 and 111, which I termload hoisting drums and through the four Y shaped pendants 15 and 15Awhich are formed of two sets. The upper ends of both sets of thesependauts are pivotally secured to shafts 16 and .17, upon which trolleysheaves 18 and 19 are rotatably mounted. These trolley sheaves aremounted on a track rope 19^, that is supported at its opposite. ends atthe tops of suitable supporting towers 20 and 20^, see Fig. 7, which arepositioned at predetermined distances apart on o posite sides of thework where the cable hoist conveyer is to be used. Connecting rods 15Aare secured at their opposite ends to the ends of the trolley sheaveshafts 16 and 17, on both sides of the trolley sheaves. The grip wheelis keyed to the main shaft by the key 21, and the drums are also keyedto the main shaft, with keys 22. These drums consist of the hubbedflanges 13^ and the sheet iron drums 1315, Which are secured to theflanges. The

main shaft extends beyond the drums through the ends of the pendants, inwhich it is ournaled in suitable journal boxes or hubs 23 and 24, formedthereon or secured thereto. The main shaft extends beyond its journalsand washers 25 are placed on the ends of i and split pins 26 are placedthrough its ends. The ends of the shafts of the trolley wheels alsoextend through and beyond. the pendants l and connecting rods andwashers 27 are l placed over their ends and split pins 28 are ,l placedthrough their ends, and thus secure I them to the pendants. The pendantsare made in two sets of two each, which stand l directly over oneanother, and they are prefl erably connected together at their upperends I where they connect to the shafts 16 and 17. Both sets divergeoutwardly from the shafts I of the trolley sheaves, the inner set 15 toa point just above and beyond the top of the grip wheel 1, where theyare bent to depend vertically to just below the lower edge of the gripWheel, from which point they converge to the sides of two small cablesheaves 29 and 30, Which are mounted on pins 31 and 32. l The ends ofthese pins are journaled in hub boxes formed on the lower ends of theinner pendants 15. The outside pendants 15* diverge outwardly from thetrolley sheave shafts at a much greater outward angle and I extend tojust above the outer flanges of the cable drum from which point theydepend l vertically downward to the shaft. Their l ends are providedwith journal boxes 23 and I 24, in which the main shaft is revolublysupported.

Around the grip wheel I place a wire rope cable 33, which I term thegrip cable, which extends to two winding drums 34, as shown in Figs. 7and 8. One end of the grip cable is wound on one of the drums 34 and theother end on the other drum 34, and both are preferably wound the sameway on both drums. These grip rope winding drums are operativelyconnected to or mounted on any l suitable winding drum engine. l

A load hoisting cable 35 is secured to the l two load hoisting drums,one end of the cable being secured to the drum 13 and the oppol site endto the drum 14, and both being arranged to be wound in the samedirection. l The loop end of t ie cable of the load winding I drumspasses around a sheave 30, which is rotatably secured in the upper endof a yoke ,l 37, on a pin 38, a hook 37A, being swiveled to the lowerend of the yoke. ln the center porl tion of the inner pendants 15, Iform two lugs 39, in which apertures 40, are formed, to which Ipivotally secure the opposite ends of a semi-ciroular shaped pull rod41, which spans the front side of the grip wheel. In the center of thispull rod 1 form an eye 42, to which I secure one end of a haul back line43, which extends to the tower 20, and passes between two sheave wheels45, and 46, and alsoV passes around the sheave wheel 46,

from which it extends to and between the sheave wheels 29, and 30, atthe lower end of the nendants 15 which act to hold it uo in j 7 loperative relation to the hoist. "lfhe sheaves 4-5, and 46, arepivotally mounted on pins 48, which are secured in the slotted ends ofyoko Straps 49, which are pivotally bolted by a bolt 50, to the tower20.

in hoisting devices of this 1kind, when loads are picked up from theground from points considerably to one side of the, vertical center ofthe hoist, the hoist is apt to tilt on the track rope more or less inthe direction of the pull on the rope, which causes the drums to assumea more or less inclined position to the horizontal plane, which is veryapt to cause the hoisting rope to cross itself and also to wind up in abunch on the drums and when the load is raised and the hoist and loadswings into the vertical plane, the

= bunched rope will slip off onto the unwound portion of the drumcausing the load to drop, which tends to fray and break the strands ofthe rope and is liable to break the rope itself. ln order to obviatethis defect in cable hoists and to insure the even winding of thehoisting rope on the drums in progressive order from one side of thedrum to the other, T provide a device that will guide the rope inprogressive order across the drums. l preferably carry out this featureof my invention in the following manner: To the opposite ends of theshaft 121 pivot arms 50A which extend downward from the shaft to a pointbeyond the periphery of the grip wheel and at an angle to a verticalline, and to the ends of the arms 1 secure either one or two rods whichextend beneath the drums substantially parallel with their axis. One rod51 may be used as shown in Fig. 6, or two rods 51 and 52 may be used asshown in the other figures. In either the guide rod 51 is threaded withreverse threads of a pitch equal to the diameter of the hoisting ropeused on the drums. I preferably use two rods 51 and 52, and space themfar enough apart to mount on them four rope sheaves 53 and 54, two ofwhich, 53, are centrally bored and oppositely threaded to screw looselyon the right and left hand threads of the threaded rod the other rod isa plain rod, upon which the sheaves 54 are loosely and slidably mounted.Each pair of sheaves are positioned to stand opposite one another, andtwo sets of sheaves are used, one set for each drum, so that the ends ofthe rope will pass between each set. The threaded sheaves are the ropeguide sheaves and are driven by the friction of the rope against them.The other sheaves are followers and serve only to hold the rope inengagement with the guide sheaves. TWhen but one rod is used, thethreaded rod is used and the plain rod and the follower sheaves aredispensed with. The reverse threads on the threaded rod are adjusted tosuit the direction or order of winding the ends of the rope on the twodrums. I preferably wind from the inside end of each drum outward;consequently, the rod is provided with reverse threaded portions thatextend from the opposite ends of the rod a distance equal to the lengthof the drums. Each reverse thread consists lof a right and left handthread. To insure that the follower sheaves will retain their positionopposite the guide sheaves, and thus prevent the rope when slack fromjumping out of the guide sheaves, the rim flanges of the guide sheaveinay be extended to overlap or straddle the flanges of the followersheaves. By means of this device the ends of the hoisting rope are woundin progressive order from one side of the drums to the other and viceversa, the threaded sheaves reversof the drums while still rotated inthe same direction by the rope. Vhile the above device for progressivelywinding the hoisting :rope on the drum is not an essential element of myimproved hoist, it is a valuable and useful improvement for some kindsof work.

The operation of my improved cable hoist conveyer is as follows: lWhenit is desired to move the hoist towards the tower, the ends of the griprope are both let out 'from both drums 34 at the same time, while thehaul back rope is wo und up on the drum SM and ulls the hoist along therope in the direction of the tower 20; to move in the oppositedirection, the two drums are made to wind the grip Wheel rope and thedrum ;MA is made to unwind the haul back rope. The winding` andunwinding of the hoisting rope is effected by the rotation of the gripwheel, which, when rotating in an anti-clockwise direction, winds theload hoisting rope up on both drums and raises the load, and whenrotated in the opposite direction unwinds and lowers the load. In caseit is desired to hold the hoist in a fiXed position, and raise or lowera load, one of the drums 3st is rotated to wind and the other drum 34:to unwind which actions will rotate the grip wheel to hoist a load, andthe haul back rope being held stationary will hold the hoist from movingin the direction of the pull of the grip rope, and in lowering, the griprope drums are rotated in reverse direction to those in hoisting.

Another feature of the hoist is that loads at the tower can be eitherhois'ted or lowered while being conveyed and the direction of haul ingcan be reversed by the proper manipulation of both the grip wheel andhaul back ropes.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. In a cable hoist conveyer, the combination with the towers, and thetrack rope, of

the pendent frames, the trolley wheels rotaing their direction ofmovement at the ends.

tably mounted in said pendent frames, a shaft journaled in saidpendants, a cable grip wheel secured to said shaft and a cable mountedon said grip wheel, having its opposite ends operatively attach ad toand wound on suitable power driven cable drums, and a haul-back cableattached to the frame carrying said grip wheel substantia'ily asdescribed.

2. ln a cable hoist cmiveycr, the combination with the towers and thetrack rope supported thereby, of the pendent frames, the trolley wheelsrotataby mounted in said pendent frames, a shaft journaled in saidpendent frames, a cable grip wheel secured to said shaft, a cable drumsecured to said shaft on each side of said cable grip wheel, a cablemounted on said cable grip wheel, a pair of cable winding, }ower-drivendrums operatively secured to the ends of said grip wheel cable, ahoisting cable secured at its ends to hoisting drums and operativelysupporting a material lifting hook, a haul back cable secured at one endto said pendants and movabiy supported by suitable sheaves to one ofsaid towers, and extending back to and supported by said pendant, andhaving' its opposite end extend from its support on said pendant andsecured to and wound on a power driven winding drum, substantially asdescribed. V

3. ln a cable hoist conveyer, the combination with the towers and thetrack rope, of the trolley pendant, the shaft journaled in said trolleypendant, the cable grip wheel and the hoisting drums and cable mountedon said shaft, of the cable guide sheaves rotatably journaled in saidpendants below said grip wheel, the guide sheaves rotatably secured toone of said towers and the haul back cable securei' at one end to saidpendants, and extending from said pendants through the guide sheaves ofsaid tower and from the guide sheaves of said tower through the guidesheaves of said pendant, and secured to its opposite end to a cable oparating power drum, substantially as described.

4. In a cable hoist conveyer, the con'ibination with the towers and thetrack cable supported thereby, of the two Y and forked shaped pendentframes arranged one over the other at their top portions and having theinner pendent frame extend below the outer pendant, a shaft mounted ateach of the ends of said Y portions of said frames, a trolley sheaverotatably mounted on each of said shafts, and mounted on said trackrope, a shaft journaled at the center-of said Y shaped pendants, and atthe lower ends said forked shaped pendants, a cable grip sheave securedto said shaft between said Y shaped pendants, two journal pins securedto the lower end of said Y shaped pendants, one above the other, cablesheaves journaled on said journal pins to register in alinemcnt witherases band portion at the periphery of each side portion, an angleplate ring secured to the inside of each of said side flanges, at apredetermined space below said band portions and a circumferential roWof operating' cable O'ripping jaws, loosely seated at their outer endsin the annular space between said band and angled ring portions, nostingmechanism actuated by sald Whee cured on said center shaft on each sideof said cable grip Wheel and between said inner and l outer pendentframes, substantially dei scribed. I 5. ln a cable hoist conveyer, thcoinbination of the towers ami the tra rope the i pendent trolley, thecable grip sheave, the grip cable, the haulback cable and l portingsheaves, and the hoisting dru l I l l one another, and cable Windingdrums sa,

l, a cable passing over said Wheel, independent Winding drums receiving'the ends of the cable, and a separate back-haul cable connected Withsaid trolley, substantially as described.

10. lin a hoist conveyer, a track, a trolley on said track, a Wheelcarried by said trolley comprising the cast hub portion, the sheet metalside flanges the annular recesses on the inner side of each side flangethe circumferential row of cable gripping jaws, each hoisting cable andmaterial lifting hoon, v. n an automatic cable Winding guide device forsaid hoisting drums, comprising arms projecting from said grip sheaveshaft threaded rod supported by i said is, and extending across saiddrums, a reverse thread on said rod, registering opposite each drum, ofthe same pitch as the diameter i said drumls cable, and a cable sheavethree d to reverse thread and arranc'ed to receive pair of dogs beingpivoted together at their guide said cable recipiocally across centersand having their heel ends loosely drums as said cable is Wound on saiddrums, pivoted in said annular space and a loose substantially asdescribed. ended erpandingring spring, operatively sup- 6. In a cablehoist conveyer, the combinaported between said fianges to bearresiliently tion of the trolley pendants, the cable grip against theunder side of the center of said Wheel, the hoisting dru is and. thehoisting cable gripping` jaws, hoisting mechanism accable, With thereverse tl 'eaded rod secured tuated by said Wheel, a cable passing overin front of said drums, the cable sheaves I said Wheel, independentWinding` drums rethread d to said rod, `and adapted to gridc ceiving theends of said cable, and a separate said cable onto said drums inprogres,, ve back-haul cable connected With said trolley substantiallyas described.

li. ln a cable hoist conveyer, the combination 'of tWo towers ereeted atpredetermined distances apart, a track cable rope seorder, substantiallyas described.

7. ln a cable hoist conveyer, the combi tion with the trolley pendant,the cable gi Wheel and the cable hoi:J 0' device ai o. i hoisting cable,of arms projecting' from toe cured at its opposite ends to sad towers, ashaft of said grip Wheel two rods secured. to pendant mounted on saidcable track rope to run on said track rope, hoisting drums opersaid a'ms reverse thread portion on the site each drum, of the same 1' ameterof said hoisting cable, and of same length as each of said drums, sheavetnreaded to eat f across the front of said drums, a

inner-i d oppo- 'tcii the di- 'ih reverse three portion of said rod,cable she-aves loosely slidably mounted on said second rod, and arrangedto stand in alncment with and to move With said threaded hear-res, andhaving said threaded sheaves arranged and adapted. J l

por-ted on a sheave rotatably secured to said to*I I'er, and extending`back and supported by a sheave' on said pendant and having its oppcsiteend attached to a cable operating' por-.ver Winding drum and meansincluding` a cable and suitable power operated Winding` drums, foroperating said' hoisting drums, substantially as described.

12. ln a cable hoist conveyer, the combination With the towers and thetrack cable secured thereby, of a pendent trolley mounted on said trackcable, a haul back cable arranged to move said pendent trolley in onedirection of its movement on said track cable, operative matei'allifting hoisting drums mounted in said pendent trolley and meansincluding a cable and separate cable operating Winding power operateddrums to operate said hoisting drums and move said pendent trolley inthe opposite direction of its movement on said track cable,substantially as described.

13. ln a cable hoist conveyer, the combination of the towers and thetrack cable, of a to receive and guide said hoisting cable i progressiveorder on said drums, substantially as described.

8. ln a cable hoist conveyer, the combinal tion with the pendant, theccble grip Wheel l and the hoisting drums and hoisting cable, of aprogressive cable Winding device for said hoisting drums, comprisingsheaves supporting said hoistin'O' cable and a reverse threaded journalupon Wnicl said sheaves are threaded and are arranged to rotete andtravel reciprocally across the face o; each of said drums` substantiallyas described. Y

9. In a hoist conveyer, a track, a trolley on said track, a Wheelcarried by said trolley comprising a hub portion shell metal sidefianges, secured at I tneir central portions to said hub portions,

an introverted circular pendent trolley mounted on said track cable, acable grip Wheel mounted in said pendant said pendent trolley in theopposite direction in vertical alinement with the trolley of said oi'its movement on said cable track, substanpendant, a hoisting drumrotatabiy mounted 1 tially as described.

in said pendent trolley on each side oi said i In testimony Whereo'i' Iaficx my signature cable g'ip WheeLa loopei 1hoisting cable op- 1 inpresence of two Witnesses.

erative seourec to saic ioistino' c ruins, a Y w f haul badk cableoperativeiy seciiied to said BXRON (J' RIBLEL pendant and one tower tomove said pendent operate said hoisting` drums and to move Witnesses G.SARGENT ELLIo'r'r, BEssIE THoMPsoN.

trolley in one direction of its movement, and a grip Wheel cableoperatively arranged to i

